Burglar alarm



Oct. 30, 1923.`

l J. F. GoRMAN ET AL BURGLAR ALARM Filed nec. 1s. 1921 S /6 h /4 f5 /7Z735' *Ll/,Z

Patented Oct. 30, 1923.

UNITED STATES PATENT OFFICE.

JAMES F. GoRMAN AND FRANK c. GoniviAN, or NEW YORK, N. Y:A

BURGLAR ALARM.

Application filed December 13, 1821. Serial No. 522,102.

T o @ZZ wlw/m. t may concern:

Be it known that we, JAMES l?. GoRMAN and FRANK C. GORMAN, citizens ofthe United States, and residents of the city of New York, borough ofBronx, in the county of Bronx and State of New York, have invented a newand Improved Burglar Alarm, of which the following is a full,

. clear, and exact description.

This invention relates to a burglar alarm and has particular referenceto one adapted for use in connection with containers or receptacles suchas safes.

An object of the invention is to provide an alarm device which iseffectively hidden from view, simple and rugged in construction, and yetwhich will instantly operate either when the receptacle as a whole ismoved from its proper position or when an attempt is made to open thedoor or cover of the receptacle,

Another object resides in the] provision 0f means wherebyr whenevereither one or both of these attempts are made a suitable signal willautomatically be actuated.

. A further object resides in the particular construction andarrangement of parts whichare hereinafter described and claimed andshown in the accompanying drawings.

The invention is illustrated in the drawi'ngs, of which-4 Figure 1 is ahorizontal section taken through a container or safe showing theapparatus whereby the above objects are achieved. i

Fig. 2 is a front view of a safe with the door open.

Fig. 3 is a partial vertical section showing the manner in which theconnection is made between the safe and the signal circuit.

The form of the invention shown in the drawings is a preferred form,although it is itself as a whole is moved from a definite position asignal will be actuated. To this en d I provide brackets 4 suitablysupported within the safe and adapted to act as a bearing forl arod 5.Thisrod 5 extends from the front to the rear of the container, throughan opening 6 in the rear wall of the container, and extends a definitedistance beyond the rear wall. The rod is provided with a collar 7, anda spring S is disposed around the rod 5 between the collar 7 and therear wall of the container. This spring tends normally to hold the frontend 9 of the rod forward in a definite relation to the doors 2 and 3.The rear end l() of the rod is preferably pointed and adapted to extendVbetween spring circuit contacts 11 and12. These contacts are mounted inany suitable manner, preferably within a recess 13, and are connectedwith wires 14 andv 15 in which are disposed a battery 16 and a signaldevice or bell 17.

When the doors 2 and 3 are opened, the spring 8 `causes the rod to moveforward until the collar 7 abuts against the bracket 4.-. With thecontainer 1 in the position shown, this would cause the rear end 10 ofthe rod 5 to be withdrawn from the contacts 11 and 12. This withdrawalwould cause the contacts to engage each other and close the signalcircuit. The withdrawal of the end 10 from the contacts may also beeffected., it will be observed, by moving the whole body of thecontainer 1 away from the position shown.

If the safe is provided with two doors, such as 2 and 3, then in orderthat the closing of door 2 may effect the movement of the rod 5,1 preferto provide an aperture 18 in the door 3 through which a plug orprojection 1 9 on the door can project to engage the end 9 of the rod 5and actuate it.

It is, therefore, readily perceived that we have provided simple,durable means which can be readily applied to any container or safe andwhich will project from the rear face thereof into association with partof a signal circuit to hold the circuit open when thea safe is in anormal condition but which, the instant the safe as a whole is moved, orthe door thereof, will cause the closing of the signal circuit. Theposition of the signal is immaterial; it may be in the immediatevicinity or it may be any distance away. It is also possible, althoughnot shown, to provide other means, such as push buttons, for operatinglthe signal in the saine circuit. By haw'ille the contacts, which areheld apart normally by the rod Il1 disposed in a recess the col'ltainercan be pushed much nearer the wall so that the n:- istence of thissignal device will be ell'ectively hidden by the container itsell.

that we claim is:

1 A burglar alarm apparatus 'tor con tainers, which comprises a slidablclllcn'lber disposed within the container and projecting there'iirolll atone end, tlle other end of the member disposed against the. cover ot thecontainer, resilient means associated with the slidable member holding`it lorcibly against the cover. a sigl'lallingi` circuit slritch disposedclosely adjacent the 'tace olf the container lfrom which the slidablemember projects, the member adapted to'el'lgaec the switch and hold itopen when lthe container is disposed in a definite position with respectto the switch, a signal circuit con* llected with said switch,iollalling 'l'leaull; in said circuit.` "ille switch anapted to closewhen the slidable member is witlnlrawn 'trom engagement therewith.

A burglar alarm flevice Vtor containers, which comprises a signalling,vcircuit switch, a' switch lher projecting controlling me. from thecontail/lcr and engaging the switch to hold it` open when the containeris disposed closely adjacent thereto, said switch adapted to close whenthe meillller is withdrawn therefrom, a portion oli said nlelnberengaging the. cover or door et the container, and resiliellt meanswithin the container holdinpthe member aga inst the door.I said member,when the door is open, adapted to be moved by the resilient means towithdraw it 'trom engagemei'lt with the switch whereby the signalcircuit is closed.

burglar alarm apparatus 'for con-` ilers, which comprises a signallingcircuit switch, a wall having a recess in which said switch is located,and a switch-controllingr member projecting` from said container toel'lgage with the switch and hold it open. said switch normallytendingto remain closed when not so engaged.

fil. burglar alarlll apparatus Ytor containers, which comprises asignalling circuit switch, a wall hal/ingA a recess in which said switchis located, a switch-controlling member projecting trom said containerto engage with the switch and hold it open, said switch normallylending` to remain closed when not so engaged, and means causing theassociation et lle projecting member with the door ot the containerwhereby the projecting n'lcnlber is ll'illulrawll from the switch whenthe door is moved.

in coliflbinati-on a sale provided with a inner and an outer door, theinner door laying all aillerl'ure therein, a projection on he outer dooradapted to be disposed in said aperture when the doors are closed, aswitch rod lesilieutly supported within the salie and adapted to bearagainst the projcclion when the doors are closed, the other end ol saidrod. projectillg i'irom without the sat'c through the rear wall thereof,a switch disijnyed adjacent the rear end ol the rod and llcld open bythe rod when the outer door is closed, a signalling means, and a sourceet current in circuit with said switch and said sigl'laling means, saidswitch adapted lo be closed when the outer door is open and the rod ismoved from normal position.

'JAMES F. GORMAN. FRANK C. GORMAN.

